Daniela Bortoletto

Department of Physics, University of Oxford

Bio

Daniela Bortoletto, is an experimental particle physicist working in the ATLAS experiment at the Large Hadron Collider in Geneva Switzerland. She was a member of the team that discovered the Higgs boson in 2012. She is currently studying the properties of the Higgs Boson, including its possible couplings to dark matter particles and searching for higher mass Higgs-like particles.  In addition she is developing new cameras to measure the trajectory of particles emerging from the LHC collisions with exquisite precision. She is participating in the upgrade of the ATLAS inner tracking system that will be needed by 2022 when the collision rate of the LHC will increase by a factor of 5 above the value for which the experiment was originally designed.

Bortoletto attended the University of Pavia (Italy) earning a Bachelor degree in physics. She received a Master and a PhD in Physics from Syracuse University (US). She joined Purdue University in 1989 as a Postdoctoral fellow and rose to the ranks to become the E. M. Purcell Distinguished Professor of Physics. In 2013 she joined the University of Oxford. She has participated in the development and construction of several silicon detectors for particle physics applications.

Abstract

From Hybrid pixels to CMOS devices for the LHC cameras

Hybrid pixel detectors have allowed precision tracking and vertexing in the challenging radiation environment of the LHC. The experiments are now preparing for the High luminosity LHC that will require more radiation hard high performance sensors. I will discuss the possibility of using active pixel sensors (MAPS) and DMAPS (depleted MAPS) for HL-LHC. DMAPS are full CMOS-pixel structures with charge collection in a depleted region that can perhaps be realised exploiting HV technologies, high ohmic substrates and/or SOI based technologies.